$OpenBSD: patch-src_gui_app_cpp,v 1.1.1.1 2014/09/06 07:05:10 bentley Exp $
--- src/gui/app.cpp.orig	Fri Jul 18 18:20:20 2014
+++ src/gui/app.cpp	Fri Jul 18 18:20:35 2014
@@ -47,6 +47,7 @@
 #ifdef HAVE_SYS_ERRNO_H
 #include <sys/errno.h>
 #endif
+#include <errno.h>
 #include <gtkmm/fileselection.h>
 #include <gtkmm/dialog.h>
 #include <gtkmm/messagedialog.h>
